CN202945125U - Backflow type oxidation pond rural sewage treatment device - Google Patents
Backflow type oxidation pond rural sewage treatment device Download PDFInfo
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- CN202945125U CN202945125U CN 201220655166 CN201220655166U CN202945125U CN 202945125 U CN202945125 U CN 202945125U CN 201220655166 CN201220655166 CN 201220655166 CN 201220655166 U CN201220655166 U CN 201220655166U CN 202945125 U CN202945125 U CN 202945125U
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Abstract
The utility model belongs to the technical field of environmental engineering water treatment device, particularly relates to a backflow type oxidation pond rural sewage treatment device, and is mainly aimed at solving the problem that the current rural sewage is directly discharged without treatment. The backflow type oxidation pond rural sewage treatment device is composed of a sewage collection tank, a biological treatment system and a backflow system; the sewage flowing in through a water inlet pipe passes through a grid and is conveyed into an anaerobic pond by a lifting pump through a water conveying pipeline and enters the biological treatment system; the sewage sequentially passes through an anaerobic pond, an aerobic pond and a subsequent aerobic pond in the biological treatment system; and then part of the sewage is fed into the sewage collection tank for circular treatment through an effluent weir of the aerobic pond, and the other part of the sewage passes through the subsequent aerobic pond and is discharged by a drain pipe. The device provided by the utility model has the advantages of investment saving, easiness in operation, convenience in management, long service life, convenience in maintenance and the like.
Description
Technical field
The utility model belongs to environmental engineering water treatment device technical field, is specifically related to a kind of return-flow type oxidation pond countryside sewage treatment equipment.
Background technology
Along with developing rapidly of economy, the Rural areas Development of China's Urbanization is constantly accelerated, and the people's standard of living improves constantly, and the rural water amount also increases gradually, and its quantity of wastewater effluent is also increased thereupon suddenly.Due to the hysteresis that sewage treatment facility is built, a large amount of undressed country sewages directly enter little river, the pool in rural area, finally enter the small waters such as lake, river.Not only have a strong impact on rural environment, bring very big hidden danger for rural health healthy state, and easily rural area soil and water source are polluted.In view of this, country sewage is carried out collection and treatment extremely urgent.The processing of China's country sewage need to be adopted the processing mode of miniaturization, site, and the treatment process that exploitation is simple and easy to use, efficient economy is very necessary.
Summary of the invention
The utility model is mainly for the problem of the at present unprocessed direct discharging of country sewage, a kind of miniaturization is provided, is simple and easy to the return-flow type oxidation pond countryside sewage treatment equipment with, efficient economy.
The technical scheme that the utility model is taked for achieving the above object is:
A kind of return-flow type oxidation pond countryside sewage treatment equipment is made of sewage collecting pool, biological treatment system and return-flow system; Described sewage collecting pool is comprised of grid and lift pump; Described biological treatment system comprises the anaerobic pond that is arranged in order from left to right, the aerobic pool and the follow-up aerobic pool, and adopts between anaerobic pond, the aerobic pool and the follow-up aerobic pool and cut off dike transition connection; Described return-flow system is for arranging return line between sewage collecting pool and aerobic pool effluent weir; After the sewage that is flowed into by water inlet pipe first passes through grid, be delivered in anaerobic pond by water pipe by lift pump, enter thus biological treatment system, sewage passes through anaerobic pond, the aerobic pool and the follow-up aerobic pool successively in biological treatment system, a part of sewage is sent into the processing of sewage collecting pool internal recycle through the return line of aerobic pool effluent weir afterwards, and another part sewage is discharged by water shoot through the follow-up aerobic pool.
Wherein: the anaerobic pond in described biological treatment system and the shape on the aerobic pool are V-type, and the height on anaerobic pond, the aerobic pool and the follow-up aerobic pool reduces successively.
The bottom of described anaerobic pond is provided with the anaerobic sludge layer, the depth of water 3.0～4.0m of anaerobic pond, hydraulic detention time 1.5～2d.
Being provided with in the described aerobic pool to provide for the nitrification and denitrification microorganism elastic filler of dirt settling, the depth of water 0.5～0.6m on the aerobic pool, hydraulic detention time 1～2d.
The bottom on the described follow-up aerobic pool is provided with pedosphere and the waterplant of planting in pedosphere, the depth of water 0.8～1.0m on the follow-up aerobic pool, hydraulic detention time 2～3d.
At the bottom of the pond on described anaerobic pond, the aerobic pool and the follow-up aerobic pool, side slope and the embankment water-resisting layer that all adopts clay or HDPE geo-membrane material to make.
The front end on the described follow-up aerobic pool is provided with front end perforation current stabilization wall, and the end on the follow-up aerobic pool is provided with settling section, and described settling section is comprised of partition wall and end perforation current stabilization wall.
In technical solutions of the utility model, anaerobic pond mainly plays four aspect effects: 1. rely on anerobe that organic pollutant is degraded; 2. play to improve to weaken when having the hard-degraded substance of higher concentration in water inlet and hinder biodegradable factor, improve the effect of the degradation characteristic of difficult degradation composition; 3. main in native system is to accept to realize anti-nitration reaction by the aerobic pool the nitrification liquid of coming that refluxes in its oxygen-starved area, improves the clearance of nitrogen.4. effectively phosphorus is processed in anaerobic pond.
Two aspect effects are played on the aerobic pool: 1. remove BOD by aerobic microbiological; 2. undertake the nitrification in denitrification process.In this pool, 3 D elastic filler is set, can plays the effect that dirt settling is provided for microorganism, thereby effectively improve the biomass in the pool.
The follow-up aerobic pool waterplant of planting is designed less organic loading, can play the effect of filtering and dirt settling being provided for microorganism, and removing remaining COD, N, P and malignant bacteria, sewage is discharged by rising pipe through behind the subsequent oxidation pool.
The utility model compared with prior art has following beneficial effect:
1, the shape on anaerobic pond, the aerobic pool is V-type, takes full advantage of nature hollow landform, and is suitable for reading large, go to the bottom little, its bottom arranges impervious barrier simultaneously, has higher stability and antiseepage function, and the mud that can reduce on reactor wall adheres to, and is easy to sludge settling.
2, anaerobic pond, the aerobic pool and the different height of follow-up aerobic pool design, can make sewage flow automatically successively by each oxidation pond; Adopt partition wall to separate between each pool, guarantee the independent operating on each pool.The anaerobic pond depth of water 3.0～4.0m, hydraulic detention time 2d.The aerobic pool depth of water 0.5～0.6m, hydraulic detention time 1～2d.The follow-up aerobic pool depth of water 0.8～1.0m, hydraulic detention time 2～3d.
3, aerobic pool projected depth is more shallow, makes airborne oxygen be easy to be dissolved in to flow in water layer, need not to add the aeration facility in the aerobic pool, can save the facility operation cost.
4, return-flow system is carried out denitrification in making and be back to anaerobic pond through nitrated nitrification liquid in the aerobic pool, can effectively improve the clearance of nitrogen.Effluent recycling ratio: 50～80%.
5, place the stereo-elastic material in the aerobic pool, can be microorganism adhewsive action is provided.
6, planting aquatic plants plays the effect of filtering and adsorbing microorganism in the follow-up aerobic pool, not only can remove remaining COD, N, P, pathogenic bacterium etc., and can play the function of campus afforest attractive in appearance.In the follow-up aerobic pool, planting aquatic plants can be as providing more oxygen in the pool, the effect that can improve microbic activity, and then raising processing efficiency.
7, the front end on the follow-up aerobic pool is provided with perforation current stabilization wall, makes the current that come by previous pool stream tend towards stability at this, when avoiding current too urgent, plant in the follow-up aerobic pool is impacted.End on the follow-up aerobic pool is provided with partition wall and perforation current stabilization wall, forms settling section, avoids canebreak in the pool along with current are taken out of.
8, return-flow type oxidation pond rural sewage treatment process can reach treatment effect preferably.Under normal temperature condition, final outflow water water quality can reach the B standard of urban wastewater treatment firm pollutant emission standard GB18918-2002 primary standard.Under cold condition, effluent quality can reach the GB18918-2002 secondary standard.
9, the stable performance that possesses skills, treatment effect is good, and reduced investment is simple to operate, convenient management, long service life, the advantage such as easy to maintenance.
Description of drawings
Fig. 1 is return-flow type oxidation pond rural sewage treatment process schema;
Fig. 2 is return-flow type oxidation pond rural sewage treatment process vertical planning drawing.
In figure, 1, water inlet pipe, 2, grid, 3, lift pump, 4, end perforation current stabilization wall, 5, water pipe, 6, anaerobic pond, 7, the anaerobic sludge layer, 8, water-resisting layer, 9, return line, 10, cut off dike, 11, the aerobic pool, 12, elastic filler, 13, pedosphere, 14, the follow-up aerobic pool, 15, waterplant, 16, water shoot, 17, front end perforation current stabilization wall, 18, settling section, 19, partition wall.
Embodiment
Embodiment 1
as Fig. 1, shown in Figure 2, a kind of return-flow type oxidation pond countryside sewage treatment equipment is made of sewage collecting pool, biological treatment system and return-flow system, described sewage collecting pool is comprised of grid 2 and lift pump 3, described biological treatment system comprises the V-type anaerobic pond 6 that is arranged in order from left to right, the aerobic pool 11 of V-type and the follow-up aerobic pool 14, anaerobic pond 6, the height on the aerobic pool 11 and the follow-up aerobic pool 14 reduces successively, and anaerobic pond 6, adopt between the aerobic pool 11 and the follow-up aerobic pool 14 and cut off dike 10 transition connections, the front end on the follow-up aerobic pool 14 is provided with front end perforation current stabilization wall 17, end on the follow-up aerobic pool 14 is provided with settling section 18, described settling section 18 is comprised of partition wall 19 and end perforation current stabilization wall 4, the bottom of anaerobic pond 6 is provided with anaerobic sludge layer 7, the depth of water 3.0～the 4.0m of anaerobic pond 6, hydraulic detention time 1.5～2d, being provided with in the aerobic pool 11 to provide for the nitrification and denitrification microorganism elastic filler 12 of dirt settling, the depth of water 0.5～the 0.6m on the aerobic pool 11, hydraulic detention time 1～2d, the bottom on the follow-up aerobic pool 14 is provided with pedosphere 13 and plants waterplant 15 in pedosphere 13, the depth of water 0.8～the 1.0m on the follow-up aerobic pool 14, hydraulic detention time 2～3d, at the bottom of the pond on anaerobic pond 6, the aerobic pool 11 and the follow-up aerobic pool 14, side slope and the embankment water-resisting layer 8 that all adopts clay or HDPE geo-membrane material to make, described return-flow system is for arranging return line 9 between sewage collecting pool and the aerobic pool 11 effluent weirs, after the sewage that is flowed into by water inlet pipe 1 first passes through grid 2, be delivered in anaerobic pond 6 by water pipe 5 by lift pump 3, enter thus biological treatment system, sewage passes through anaerobic pond 6, the aerobic pool 11 and the follow-up aerobic pool 14 successively in biological treatment system, a part of sewage is sent into the processing of sewage collecting pool internal recycle through the return line 9 of the aerobic pool 11 effluent weirs afterwards, and another part sewage is discharged by water shoot 16 through the follow-up aerobic pool 14.
In servicely need to arrange the regular management equipment operation of special messenger at return-flow type oxidation pond rural sewage treatment process, safeguard, cleaning grid and the foreign material of Inlet and outlet water position everywhere; During planting plants, need in time harvesting in the pool.Annual a small amount of clear the washing in a pan once of mud in each pool.
The processing parameter of return-flow type oxidation pond rural sewage treatment process:
Anaerobic pond: hydraulic detention time 1.5～2d, the depth of water 3.0～4.0m.The aerobic pool: hydraulic detention time 1～2d, the depth of water 0.5～0.6m.
Effluent recycling ratio: 50～80%.
The follow-up aerobic pool: hydraulic detention time 2～3d, the depth of water 0.8～1.0m.Include sludge blanket thickness with headwater depth
Treatment effect: under normal temperature condition, final outflow water water quality can reach the B standard of urban wastewater treatment firm pollutant emission standard GB18918-2002 primary standard.Under cold condition, effluent quality can reach the GB18918-2002 secondary standard.
The scope of application: the villages and small towns that are applicable to middle and small scale that denitrogenation dephosphorizing is had relatively high expectations.Be applicable to the nature pond, the depression can utilize as oxidation pond, and physiographic relief has the villages and small towns of high low head.
Claims (7)
1. a return-flow type oxidation pond countryside sewage treatment equipment, is characterized in that: be made of sewage collecting pool, biological treatment system and return-flow system; Described sewage collecting pool is comprised of grid (2) and lift pump (3); Described biological treatment system comprises the anaerobic pond (6) that is arranged in order from left to right, the aerobic pool (11) and the follow-up aerobic pool (14), and adopts between anaerobic pond (6), the aerobic pool (11) and the follow-up aerobic pool (14) and cut off dike (10) transition connection; Described return-flow system is for arranging return line (9) between sewage collecting pool and the aerobic pool (11) effluent weir; After the sewage that is flowed into by water inlet pipe (1) first passes through grid (2), be delivered in anaerobic pond (6) by water pipe (5) by lift pump (3), enter thus biological treatment system, sewage passes through anaerobic pond (6), the aerobic pool (11) and the follow-up aerobic pool (14) successively in biological treatment system, a part of sewage is sent into the processing of sewage collecting pool internal recycle through the return line (9) of the aerobic pool (11) effluent weir afterwards, and another part sewage is discharged by water shoot (16) through the follow-up aerobic pool (14).
2. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1, it is characterized in that: the shape of the anaerobic pond in described biological treatment system (6) and the aerobic pool (11) is V-type, and the height on anaerobic pond (6), the aerobic pool (11) and the follow-up aerobic pool (14) reduces successively.
3. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1, it is characterized in that: the bottom of described anaerobic pond (6) is provided with anaerobic sludge layer (7), the depth of water 3.0～4.0m of anaerobic pond (6), hydraulic detention time 1.5～2d.
4. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1, it is characterized in that: being provided with in the described aerobic pool (11) to provide for the nitrification and denitrification microorganism elastic filler (12) of dirt settling, the depth of water 0.5～the 0.6m on the aerobic pool (11), hydraulic detention time 1～2d.
5. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1, it is characterized in that: the bottom on the described follow-up aerobic pool (14) is provided with pedosphere (13) and plants waterplant (15) in pedosphere (13), the depth of water 0.8～the 1.0m on the follow-up aerobic pool (14), hydraulic detention time 2～3d.
6. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1 is characterized in that: at the bottom of the pond on described anaerobic pond (6), the aerobic pool (11) and the follow-up aerobic pool (14), side slope and the embankment water-resisting layer (8) that all adopts clay or HDPE geo-membrane material to make.
7. a kind of return-flow type oxidation pond countryside sewage treatment equipment according to claim 1, it is characterized in that: the front end on the described follow-up aerobic pool (14) is provided with front end perforation current stabilization wall (17), end on the follow-up aerobic pool (14) is provided with settling section (18), and described settling section (18) is comprised of partition wall (19) and end perforation current stabilization wall (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655166 CN202945125U (en) | 2012-12-03 | 2012-12-03 | Backflow type oxidation pond rural sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655166 CN202945125U (en) | 2012-12-03 | 2012-12-03 | Backflow type oxidation pond rural sewage treatment device |
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| CN202945125U true CN202945125U (en) | 2013-05-22 |
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| CN 201220655166 Expired - Fee Related CN202945125U (en) | 2012-12-03 | 2012-12-03 | Backflow type oxidation pond rural sewage treatment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626759A (en) * | 2019-01-30 | 2019-04-16 | 河海大学 | A kind of circulating the ecology pond systems of full section and method handling agriculture stain disease |
| CN109942087A (en) * | 2019-04-23 | 2019-06-28 | 天津农学院 | A kind of synthesis facultative lagoon of efficient process country sewage |
| CN113292197A (en) * | 2021-02-09 | 2021-08-24 | 广东创实环境科技有限公司 | Method and system for treating sewage of intensified oxidation pond |
| CN113788543A (en) * | 2021-09-26 | 2021-12-14 | 同济大学 | Rural sewage treatment system based on stabilization pond |
-
2012
- 2012-12-03 CN CN 201220655166 patent/CN202945125U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626759A (en) * | 2019-01-30 | 2019-04-16 | 河海大学 | A kind of circulating the ecology pond systems of full section and method handling agriculture stain disease |
| CN109942087A (en) * | 2019-04-23 | 2019-06-28 | 天津农学院 | A kind of synthesis facultative lagoon of efficient process country sewage |
| CN113292197A (en) * | 2021-02-09 | 2021-08-24 | 广东创实环境科技有限公司 | Method and system for treating sewage of intensified oxidation pond |
| CN113788543A (en) * | 2021-09-26 | 2021-12-14 | 同济大学 | Rural sewage treatment system based on stabilization pond |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20201203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |